# Add Sound Effect to Video

> Add Sound Effect to Video is a paid API for AI agents from agents.vimmerse.net, paid per call via MPP, $0.6/call (dynamic — varies by input), status unknown (last checked 2026-10-31).

Adds an AI-generated sound effect to a video, described by a text prompt

## Facts

- Endpoint: POST https://agents.vimmerse.net/v2/video/sound-effect?utm_source=zero.xyz
- Price: $0.6/call (dynamic — varies by input)
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Provider: agents.vimmerse.net
- Website: https://agents.vimmerse.net
- Canonical page: https://www.zero.xyz/c/agents-vimmerse-net-add-sound-effect-to-video-08bb6122
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HET4wjPEqjnpLmHokh_cB

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability agents-vimmerse-net-add-sound-effect-to-video-08bb6122 -d '<json body>'
```

Example prompt: Can you add a thunderstorm sound effect to this video — here's the URL: https://example.com/myvideo.mp4 — use the prompt 'heavy rain and distant thunder crashing' to describe the sound?

## When to prefer this

Choose this endpoint when you need to add AI-generated ambient or thematic sound effects to an existing video clip, driven by a descriptive text prompt. It is ideal for post-production enhancement of silent or audio-poor footage. Use async mode with a webhook for longer videos. Prefer this over a full video generation endpoint when you already have the video and only need audio enhancement.

## Known failure modes

- Invalid or inaccessible video URL returns an error
- Prompt too vague or unsupported may result in poor quality output
- Async job may time out or fail if video is too long or server is busy
- Missing required video_url field returns a 422 validation error
- Payment failure or insufficient credits returns a 402 error
- Webhook URL unreachable may cause silent delivery failure in async mode

## How this service works

Adds an AI sound effect to **`video_url`** described by **`prompt`**.

## Output

Returns a response containing the processed video or a job ID for async polling, along with status information. In async mode, a webhook URL can be provided to receive the completed result when the sound effect has been applied to the video.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "title": "SoundEffectRequest",
 "required": [
  "video_url"
 ],
 "properties": {
  "prompt": {
   "type": "string",
   "title": "Prompt",
   "default": "",
   "description": "Prompt describing the sound effect."
  },
  "video_url": {
   "type": "string",
   "title": "Video URL"
  },
  "async_mode": {
   "type": "boolean",
   "title": "Async Mode",
   "default": false
  },
  "webhook_url": {
   "anyOf": [
    {
     "type": "string"
    },
    {
     "type": "null"
    }
   ],
   "title": "Webhook URL"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agents-vimmerse-net-add-sound-effect-to-video-08bb6122/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agents.vimmerse.net](https://www.zero.xyz/host/agents.vimmerse.net/llms.txt)